There’s nothing like it.
The sight of fireflies lighting up the night sky is something you’ll never forget and it’s a core memory your kids will remember forever.
But where can you see them?
Luckily Tennessee has some of the best places to see fireflies in the United States, and some of them are hidden gems that tourists don’t know about.
We’ve rounded up 7 of the absolute best places to see fireflies in Tennessee.
There’s also a tips section at the end to give you the best chance of witnessing these magical creatures.
1. Elkmont – Great Smoky Mountains National Park
Best time of year to see fireflies: Late May to mid-June
Elkmont is located inside the Great Smoky Mountains National Park, about a 25-minute drive from Gatlinburg, and is one of the most renowned places in Tennessee to witness this natural phenomenon.
It’s famous for its synchronous fireflies (Photinus carolinus), which flash in perfect unison—a totally wild light show that only happens in a few places on Earth.
Some of the best viewing spots are near the Little River Trail and Jakes Creek Trail.
Heads up—you need a parking pass or shuttle ticket through the official lottery system, and those go fast, so apply weeks in advance.
While you’re waiting for the sun to set, you can hike the 0.9-mile Little River Trail, explore the spooky remains of the Elkmont Ghost Town, or picnic by the rushing river before the fireflies begin their evening display.
2. Cades Cove – Great Smoky Mountains National Park
Best time of year to see fireflies: Late May to early June
Cades Cove might be better known for black bears and mountain views, but when the fireflies come out, it’s a magical sight along the loop road.
Drive the 11-mile loop road right before sunset, park in one of the pull-offs, and once it gets dark, the trees start twinkling with thousands of fireflies.
You’ll hopefully be able to spot some synchronous ones and even the mysterious blue ghost (yes, that’s their real name).
No permits or lotteries here, but it does get crowded fast, so arrive early and bring snacks, bug spray, and a flashlight with red cellophane so you don’t mess with the show.
While you’re waiting for the bugs to do their thing, you can bike the loop (it’s closed to cars all day on Wednesdays from June through September) or explore 19th-century cabins and churches.
3. Lamar Alexander Rocky Fork State Park
Best time of year to see fireflies: Late May through early July
Lamar Alexander Rocky Fork State Park, tucked away in the Appalachian Mountains of Northeast Tennessee near Flag Pond, is a hidden gem known for its lush forests, cold mountain streams, and magical nighttime firefly shows.
During early summer, the park lights up with synchronous fireflies (Photinus carolinus) and blue ghost fireflies (Phausis reticulata), giving visitors an enchanting, one-of-a-kind light show deep in the woods.
The best spots to catch the glow are near the creek and in quiet forest clearings, where you should arrive before dusk to claim a good viewing spot.
You do need a permit to see the fireflies and permits work on a lottery basis.
By day, you can hike scenic trails leading to waterfalls, fish in the cool streams, or picnic by the water.
4. Pickett CCC Memorial State Park
Best time of year to see fireflies: Early to mid-June
Pickett CCC Memorial State Park is located right next to Big South Fork and features dark skies, quiet woods, and one of the most unique creatures on the planet.
You’ll spot the park’s famous glow worms in Hazard Cave, their steady green-blue light shining from the rocks like something out of a dream.
The best places to catch the magic are along the Hazard Cave Trail, especially inside the cave’s rock shelter so just walk slow, keep your flashlight off, and let your eyes adjust.
In the daylight, you can explore natural rock arches and paddle the peaceful 12-acre Arch Lake.
5. Bandy Creek – Big South Fork National River and Recreation Area
Best time of year to see fireflies: Early to mid-June
There have been some reports of firefly sightings at Bandy Creek in Big South Fork but it’s not as guaranteed as other spots on this list.
No permit needed here, just show up before dark, find a quiet spot along the trail or near the river, and get ready for some glow time.
While you wait for the show, hike to Angel Falls Rapids (about 4 miles round trip) or Angel Falls Overlook (about 5.6 miles round trip).
You can also explore the historic O&W Railroad Bridge via the O&W Railroad Trail, or go for a paddle down the Big South Fork River—bonus points if you spot a turtle sunbathing.
6. Meeman-Shelby Forest State Park
Best time of year to see fireflies: Late May to early June
Meeman-Shelby Forest State Park, about 25 minutes from Memphis, is home to fireflies that can be seen across its 12,500 acres of hardwood forest.
The best firefly viewing happens along the Woodland Trail and around Poplar Tree Lake, where you’ll see flashes lighting up the underbrush and even reflecting off the water.
No permits are needed for general park access so bring a blanket or lawn chair and enjoy the park near the lake.
By day, you can paddle across the 125-acre Poplar Tree Lake, hike the moderate 8-mile Chickasaw Bluff Trail, or visit the Nature Center to learn all about the critters hiding in those glowing woods.
7. Radnor Lake State Park
Best time of year to see fireflies: Early to mid-June
Radnor Lake State Park in Nashville is a total surprise as this peaceful nature spot is right in the city, but come firefly season, it feels like a secret forest.
Fireflies can sometimes be seen along the Lake Trail and South Lake Trail, especially near the water’s edge where the reflections double the sparkle.
The park closes at sunset, but ranger-led evening programs during firefly season offer a chance to see them—these events fill up quickly via the park’s event calendar.
Before the glow kicks in, wander the nearly 1.4-mile Lake Trail for otter sightings, scope out deer near the observation deck, or just soak up the calm.
You’d never guess you’re only 20 minutes from downtown Nashville!
Tips For Firefly Viewing In Tennessee
Go at the right time
Late May to mid-June is peak firefly season in Tennessee, but it can vary from area to area and from year to year. Check local park websites for exact timing so you don’t waste a trip.
Arrive early:
Get there early to find parking, get oriented, and let your eyes adjust to the dark.
Skip the flashlight (or use red light):
Bright lights disrupt the fireflies’ mating signals. Use red filters or cover your flashlight with red cellophane if needed.
Wear bug spray and long sleeves:
Mosquitoes love the woods at dusk as much as the fireflies do.
Be respectful:
Stay on trails, don’t try to catch fireflies, and avoid loud noises or playing music.
Consider weekday visits:
Popular spots get crowded on weekends so try to visit midweek for a more peaceful experience.
Check park rules:
Some locations require permits, parking reservations, or even a lottery (like Elkmont).
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